Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2016 USD ($) warehouse shares	Jun. 30, 2015 USD ($) shares	Jun. 30, 2014 USD ($) shares
Property, Plant and Equipment
number of delivery routes	450
Derivative instruments designated as cash flow hedges (percent)	96.00%	94.00%
Restricted cash	$ 0	$ 1,002
Provision for (recovery of) doubtful accounts	71	(8)	$ 80
Decrease in allowance of accounts receivable		8
Cost of goods sold	335,907	348,846	$ 332,466
Property, plant and equipment gross	$ 314,709	$ 304,742
Shares issuable under stock options (in shares) | shares	124,879	139,524	104,956
Antidilutive securities excluded from computation of earnings per share (in shares) | shares	30,931	10,455	22,441
Impairment losses on goodwill and intangible assets	$ 0	$ 0
Shipping and handling costs	13,300	8,300	$ 8,400
Undiscounted workers' compensation liability	14,700	13,400
Reinsurance recoveries	2,400	2,500
Liability reserve for claims incurred	900	800
Security Deposit - Letter of Credit
Property, Plant and Equipment
Letter of credit posted as security deposit	$ 7,400	7,000
Workforce Subject to Collective Bargaining Arrangements
Property, Plant and Equipment
Concentration risk (percent)	31.00%
Coffee Brewing Equipment and Service
Property, Plant and Equipment
Cost of goods sold	$ 27,000	26,600	25,900
Deposits Held At CommodityTrading Accounts
Property, Plant and Equipment
Restricted cash	0	1,000
Health Insurance Product Line
Property, Plant and Equipment
Estimated liability related to Company's self-insured group medical insurance	$ 1,300	1,000
Maximum
Property, Plant and Equipment
Cash equivalents and short-term investments maturity period	180 days
Branch Warehouses
Property, Plant and Equipment
Number of real estate properties | warehouse	109
Building and Facilities
Property, Plant and Equipment
Property, plant and equipment gross	$ 54,768	79,040
Building and Facilities | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life	30 years
Building and Facilities | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life	10 years
Machinery and Equipment
Property, Plant and Equipment
Property, plant and equipment gross	$ 182,227	172,432
Machinery and Equipment | Maximum
Property, Plant and Equipment
Property, plant and equipment useful life	5 years
Machinery and Equipment | Minimum
Property, Plant and Equipment
Property, plant and equipment useful life	3 years
Office Furniture and Equipment
Property, Plant and Equipment
Property, plant and equipment useful life	5 years
Property, plant and equipment gross	$ 16,077	15,005
Capitalized Software Costs
Property, Plant and Equipment
Property, plant and equipment useful life	3 years
Property, plant and equipment gross	$ 21,545	19,703
Coffee Brewing Equipment
Property, Plant and Equipment
Depreciation	9,800	10,400	$ 10,900
Property, plant and equipment gross	$ 8,400	$ 10,700